Tag: zoology

Questions Related to zoology

Excessive thirst leading to increased consumption of water is

  1. Polyurea

  2. Glycemia

  3. Polyphagia

  4. Polydipsia


Correct Option: D
Explanation:
Polydipsia is a medical name for the feeling of extreme thirstiness. Polydipsia is often linked to urinary conditions that cause you to urinate a lot. This can make your body feel a constant need to replace the fluids lost in urination. It can also be caused by physical processes that cause you to lose a lot of fluid. This can include sweating during exercise, eating a high-salt diet, or taking drugs that cause you to pass a lot of fluid, such as diuretics.

So, the correct answer is 'Polydipsia'.

Kidney stone is produced due to

  1. Deposition of sand particles

  2. Precipitation of proteins

  3. Crystallisation of oxalates

  4. Blockage of fat


Correct Option: C
Explanation:

Kidney stones are also called urine calculi. Urine calculi are small stones which are hard deposit in the kidneys and cause pain when are passed through the urinary stream. They are often calcium oxalate crystals. Hence kidney stone is produced due to crystallization of oxalates.

So, the correct answer is 'Crystallisation of oxalates'.

Ketosis is due to

  1. High insulin level

  2. Low insulin level

  3. Low thyroxine level

  4. Low level of glucagon


Correct Option: B
Explanation:

When the body has low levels of insulin it cannot get enough glucose into cells for energy requirements. So the body uses alternate energy by burning body fat. Ketone bodies are byproducts in the metabolism of fat. During starvation or fasting conditions the liver synthesizes glucose through a process called gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the generation of glucose from fat. During gluconeogenesis, the ketone bodies are formed as byproducts where the product is glucose. The accumulation of ketone bodies in tissues are called as ketosis. Hence ketosis is due to Low insulin levels.

So, the correct answer is 'Low insulin levels'.

A condition of failure of kidney to from urine is called

  1. Creatine

  2. Hematuria

  3. Anuria

  4. Ketonuria


Correct Option: C
Explanation:

Anuria means non passage of urine, in practice is defined as passage of less than 100 milliliters of urine in a day. Anuria is caused by failure in the function of kidneys. It may also occur because of some severe obstruction like kidney stones or tumours. It may occur with end stage renal disease.

The condition in-which kidneys fail to conserve water leading to water loss and dehydration due to impaired ADH synthesis or release is

  1. Graves disease

  2. Addisons disease

  3. Diabetes insipidus

  4. Cretinism

  5. Acromegaly


Correct Option: C
Explanation:

Diabetes insipidus is a condition caused by the deficiency of antidiuretic hormone ADH in the body. ADH(Antidiuretic hormone) helps the kidneys keep the correct amount of water in the body. Diabetes insipidus is marked by intense thirst and heavy urination. Thus the condition in-which kidneys fail to conserve water leading to water loss and dehydration due to impaired ADH synthesis or release is Diabetes insipidus'.

So, the correct answer is 'Diabetes insipidus'.

Renal rickets is related to old age

  1. Vitamin D deficiency

  2. Osteoporosis

  3. Chronic kidney disease

  4. Both B and C


Correct Option: D
Explanation:

Rickets is the condition of the weakening of bones due to vitamin D deficiency in the children. In people with old age, rickets is due to renal insufficiency caused due to Osteoporosis and chronic kidney disease.

So, the correct answer is 'Both B and C'

What is glycosuria ?

  1. Low amount of sugar in urine

  2. Low amount of fat in urine

  3. Average amount of carbohydrate in urine

  4. High amount of sugar in urine


Correct Option: D
Explanation:

Glycosuria is the presence of glucose(6 carbon sugar) in urine. It majorly occurs due to untreated diabetes mellitus. Hence glycosuria is a high amount of sugar in the urine.

So, the correct answer is 'Option D'.

All of the following are physiologic effects of acute renal failure, except

  1. Edema

  2. Hypertension

  3. Acidosis

  4. Immediate death


Correct Option: D
Explanation:

Acute renal failure is a condition in which the kidneys suddenly can't filter waste from the blood. It can occur as a result of blood loss, toxins, or physical damage to the kidneys. Edema, hypertension and acidosis are few symptoms of acute renal failure. This is treatable and does not result in immediate death. 

So, the correct option is 'Immediate death'.

ADH deficiency shows, the following condition

  1. Polydipsia

  2. Polyuria

  3. Glucosuria

  4. Both A and B


Correct Option: D
Explanation:

The term diuresis refers to the excessive production of urine. When excess water is lost through urine the blood volume is decreased and its osmolarity is increased which stimulates the posterior pituitary to release ADH. ADH decreases the volume of urine by increasing the reabsorption of water by kidneys and prevents diuresis. Hence it is also called antidiuretic hormone. ADH deficiency causes diuresis which leads to polydipsia (excess thirst) and polyuria (excess urine).

So, the correct answer is 'Both A and B'.

Which is correct in normal humans

  1. pH of urine is around 8

  2. 20 - 30 mg of urea is excreted per day

  3. Ketone bodies in urine indicate diabetes mellitus

  4. Glycosuria is treated with hemodialysis


Correct Option: C
Explanation:

Presence of ketone bodies in urine is called as ketonuria. It indicates diabetes mellitus.In diabetes mellitus glucose cannot enter the cell due to lack of insulin hence Ketone bodies are the alternate source of energy. when glucose is in short supply, ketone bodies are made in the liver by break down of fat when there is not enough sugar or glucose to supply body's fuel needs.

So, the correct answer is 'Option C'.